comfortmaker furnace; i've done the hard part by taking the blower motor out

so i've been searching online and i'm not entirely convinced that i'll be ordering the right motor. I believe my motor is the culprit when the fan is on it makes a horrible sound like its trying to eat its way out of the furnace. after taking the entire assembly out of the housing i disassembled the motor from the rotating fan and pulled it out....there is oil/grease on part of the motor thats was closest to the ground. the fan doesnt look like its hitting anything so it definently looks like its the motor.

how do i go about making sure i have the right one? i have plugged in the model number and i get a bunch of hits but i see a lot of universals and I know that will be a pain to get the wiring correct. i just want to get a plug and play blower motor....is that even possible.

the model is of furnace is:
ComfortMaker
80+ single stage category I furnace.
N/8MPN/L

blower motor model is:
GE Motors
5KCP39NG
HP 1/2
RPM1050/4SPD

i can post a pic of the label of the blower motor if it would help. i need to buy this thing ASAP. its hot as hades durung the day in the house.